Answer to Question 1
Ans:
C, B, A, D, E
Feedback:
RA is thought to begin with a T-cell-mediated immune response that precipitates interaction between IgG and RF that constitutes an immune response. Pannus invasion is one consequence of this interaction, the ultimate result of which is destruction of cartilage.
Answer to Question 2
Ans:
D
Feedback:
Damage to the ligament structures is associated with sprains, and an incomplete tear would be indicative of a mild to moderate (grade 1 or 2) sprain. A strain is associated most commonly with overuse, and severe sprain would involve total disruption of the ligament.